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GLOSSARY 



Pilose, hairy, especially with 

 soft hairs. 



Pinna [pi. pinnae). One of the 

 primary divisions of a simple 

 pinnate or compoundly pin- 

 nate frond or leaf. 



Pinnate (leaf), compound, with 

 leaflets arranged on each 

 side of a common petiole or 

 rachis. 



Pinnati-fid, -partite, -sect (leaf), 

 pinni-veined, pinnately-lobed, 

 simple leaf, the sinuses being 

 respectively less, more, or 

 most deep. 



Pistil, the seed-bearing organ 

 of the flower, consisting of 

 the ovary, stigma, and style 

 when present. 



Pistillate, provided with pistil, 

 and, in its more restricted 

 sense, without stamens. 



Pitcher, pitcher-like structures; 

 also called ascidium oxutricle. 



Pitted, marked with small de- 

 pressions or pits. 



Placenta, any part of the interior 

 of the ovary which bears 

 ovules. 



Plicate, folded into plaits, usu- 

 ally lengthwise. 



Plumule, the first bud or grow- 

 ing point of the embryo. 



Pod, any dry and dehiscent 

 long fruit. 



Pollen, the fecundating grains 

 contained in the anther. 



Pollination, contact of the ripe 

 pollen with the mature stigma 

 in Angiosperms or with the 

 ovule directly in Gymno- 

 sperms. 



PoUiniferous, bearing pollen. 



PoUinium {j>l. poUinia), a mass 

 of waxy pollen or of coherent 

 pollen-grains, as in Asdepia- 

 dacem and Orchidacea. 



Polyadelphous (stamens), fila- 

 ments combined in many 

 bundles, anthers remaining 

 free. 



Polypetalous, having separate 

 petals. 



Pome, a kind of fleshy fruit of 

 which the apple is the type (a 

 kind of berry). 



Porous, pierced with small holes 

 or pores. 



Posterior, in an axillary flower, 

 the side nearest to the axis of 

 inflorescence. 



Prickle, a small spine or more 

 or less slender sharp out- 

 growth from the bark or rind, 

 easily separable from it. 



Procumbent, lyingontheground 

 or trailing but without root- 

 ing at the nodes. 



Proliferating, proliferous, pro- 

 ducing offshoots. 



Prostrate, lying flat upon the 

 ground. 



Protandrous, having the anthers 

 ripe before the maturity of 

 the stigma, of hermaphrodite 

 flowers. 



Protogynous, having the stigma 

 ripe for the pollen before the 

 maturity of the anthers, 'of 

 hermaphrodite flowers. 



Pubescent, covered with hairs, 

 especially if short, soft, and 

 down-like. 



Pyriform, pear-shaped. 



Raceme, a simple inflorescence 

 of equally or nearly equally 

 pediceled flowers upon a 

 common more or less elon- 

 gated axis. 



Racemose, in racemes, or re- 

 sembling a raceme. 



Rachis, the axis of a spike. 



